Charcoal



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JAME s s. EVANS, or Info N-DAL E, Mis s oU'RI.

4 Lette/rs .Patent No. 84,866, dated December l5, 1868.

PRDCESS O-F SREENING CHARCOAL.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it ma/y concwn:y

Figure l represents an end elevation ofmy invention.,

Figure 2 represents a top view of same.

Figure 3 represents a top view of a section of same made at :rf-y.

Figure 4 is a front elevation of the same.

Similar letters indicate like parts.

The nature of my invention consists in a method or process of screening charcoal, withoutmanipulatiug the same, after it has been placed in the wagon which conveys it to the screening-apparatus, the charcoal being caused to automatically deposit itself directly upon a chute, from which it passes through the saidscreening-apparatus, the screened charcoal being deposited in a suitable receptacle, and the ne particles or braze beinglikewise deposited in a suitable receptacle, whereby I am enabled to dispense with considerable labor and annoyancefand to greatly expedite the operation.

I will describe an apparatus by which my process may be successfully put into practice.

A, figs. l, 2, and 3 of the accompanying drawing, designates a platform, which is supported on a framework, a a, iig. 1 a a2 a?, Ste., iig. 4, of a convenient height.

Between al and a2 a chute, B, figs. l, 2, 3, is placed, one extremity being attached to the top of the framework at c, tig. l, while the other is supported bylinks, d d', the f chute being so hung as to have a lateral Inotion between a and c2, and its mout-h extending beyond the frame-work, as shown in fig. 1. The bottom of this chute7 is covered, for nearly its whole length,

with a network of wire, forming a sieve, as seen in gs. 2 and 4.

A smaller chute, E, gs. l, 2, 3, is attached to the top of the frame, opposite the head of B, and its mouth is also supported by links b b1. n

Beneath B is a trough, D, figs. '1, 3, 4, its mouth extending beyond the frame on the side opposite the mouth of B, seen.

Similar chutes,BB, figs. 2 and 4, are arranged between a2 and a3, and a3 and a4, and smaller chutes,7

E E, figs. 2 and 4, are connected with them, and' troughs, D' D", figs. 3 and 4, are placed below them in the manner already' detailed.

There maybe as many series of chutesand troughs as desired. l

There is a track laid on the platform, and a portion of the platform, h h h", gs.2 and 4, is made to slide in and out, by suitable appliances, the sides of the platform or frame being raised above the track, as seenin g. l.

The wagon F, containing the coa-l to be screened,

being driven on the platform, which basan inclined plane leading to it, as -soon as the horses have passed the sliding platform, the wagon standing ou the track and over the slide, the same is drawn out, as seen in g. 2, and then the bottom boards 1,2, 3, 4 of the wagon being withdrawn, the coal falls partlyon the chute B directly, and a portion on the chute E, thence sliding on to B, from'which the coarser part falls into the box H, placedto receive it, while the finer portion, or brace, falls through the screen into the trough D.

The chute7 E prevents the coal om 'passing too rapidly over the screen, and also causes all the coal to have the benefit of the whole length of the screen, by throwing it on to the upper end of it, instead of allowing a great part of it to fall almost on the mouth of the screen, as would be the case if the chuteEwere not there. vThe braze is then d rawn out by a rake, o, lig. 3, into a box, M, iig. l, provided to receive it.

Both the boxes H and M are provided with casters, so that they can be easily rolled on to the wagon, which carries them away.

The sides of H being graduated to a scale, the coal ismeasured as it falls into it.

This platform may be made of any desired length, and the number of chutes increased proportionally.

From the above description it will appearV obvious that, by constructing lthe apparatus with a platform suitable for receiving upon it a Wagon containing the charcoal to be screened, no handling of the same, subsequent to that required for loading the wagon, is necessary, the charcoal being allowed to deposit itself directly from the wagon upon a chute, from which it passes to the screen, running down the whole length thereof, whereby the charcoal is separated from the bra-ze, and deposited'i'n a receptacle provided for it, and the braze7 being deposited in a receptacle provided for it.

It will therefore appear obvious that, by my improved method or process of screening charcoal, a great amount of labor, in handling the same,is dispensed with, and thereby much expense saved, andthat the operation is very greatly expedited.

I will here remark that I am aware of an apparatus for screening charcoal, shown and described in a patent issued to William Sparks, on the 12th of September, 1865; in which there was a hopper, and a screen, and a platform, the said platform being designed and intended as a place on which the workman could stand in order to takeh'old of and dump into the hopper the. buckets of charcoal, as the same were hoisted up to him. This apparatus is different in construction from that I have described, and could not be used for putting into practice my improved process or method of 4screening charcoal.

What I claim as my invention, and desire to secure by Letters Patent, is-

Vl. The method or kprocess of screening charcoal, substantially as herein specified.

2. The apparatus herein described as being adapted for carrying out the said process, that is to say, the

combination of the, sliding. platforms, the screens, chutesf and troughs, substantially as herein specied.

3. In a charcoal-screening apparatus, the combina.- tion with a screen 'of a platform so constructed, adapted, and arranged, as to receive vupon it, in a position directly, or nearly so, over the screen, a wagon containeases Witnesses:

SAML S. BOYD, HENRY T. CARTER.

JAS. S. EVANS. 

